Bound entanglement in the XY model (Articolo in rivista)

Type
Label
  • Bound entanglement in the XY model (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Patane, D; Fazio, R; Amico, L (2007)
    Bound entanglement in the XY model
    in New journal of physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Patane, D; Fazio, R; Amico, L (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 9 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Catania, MATIS INFM, Dipartimento Metodol Fis & Chim, I-95125 Catania, Italy; SISSA, I-34014 Trieste, Italy; Scuola Normale Super Pisa, NEST, Ist Nazl Fis Nucl, I-56126 Pisa, Italy (literal)
Titolo
  • Bound entanglement in the XY model (literal)
Abstract
  • We study the multi-spin entanglement for the 1D anisotropic XY model concentrating on the simplest case of three-spin entanglement. As compared to the pairwise entanglement, three-party quantum correlations have a longer range and they are more robust on increasing the temperature. We find regions of the phase diagram of the system where bound entanglement ( BE) occurs, both at zero and finite temperature. BE in the ground state can be obtained by tuning the magnetic field. Thermal BE emerges naturally due to the effect of temperature on the free ground state entanglement. (literal)
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